Dems don't exactly need a top tier challenger to beat Hardy. Obama won the district by double digits and most people in the district probably don't even know who he is since turnout was so low. DOA.
It's worth noting that in 2012, the NV-4 House margin was 2.5% lower than the NV-4 presidential margin. Give a few extra points to Hardy for incumbency and Flores natural weakness, and you can easily see him holding on as long the presidential ticket keeps Hilary's NV-4 margin to 6, 7 points.
Wouldn't that be due to it being an open seat contest and an incumbent president though?